Traffic Avoidance System
**From $22,695 installed.
This unit must be installed by Pacific Coast Avionics.

Catalog No:

Manufacturer: GARMIN

Garmin GPS


The GTS 820 from Garmin gives alertness, vigilance, and most importantly, situational awareness for your aircraft. These are some of the most vital safety factors any pilot can bring to the cockpit. For additional protection in busy airspace, Garmin's GTS™ family of ADS-B enhanced Traffic Advisory Systems (TAS) and Traffic Collision Avoidance Systems (TCAS I) can make a world of difference for any pilot. Featuring exclusive Garmin CLEAR CAS™ technology, these competatively priced systems provide accurate, dynamic surveillance of nearby transponder-equipped aircraft – with ATC-like spoken audio alerts to help pilots see and respond to potential flight path intrusions.

This is Serious Show-and-Tell

The Garmin GTS 820 can track up to 60 traffic targets simultaneously – and display up to 30 intruder threats at a time. This all depends on the specific capabilities of the display system being used though. (There is no dedicated panel instrument for Garmin TAS; it interfaces with many compatible displays.) Targets are depicted using familiar TCAS-defined symbols and selectable horizontal display ranges let pilots configure the presentation to their specific flight requirements.

Voice Alerts Keep Heads Up and Eyes Out

Most systems offer the generic "Traffic, traffic" voice alerts. These earlier-generation systems aren't very much help. The Garmin GTS 820's exclusive CLEAR CAS technology provides for expanded audio messaging in an ATC-like verbal format: "Traffic. One o'clock. High (or Low or Same Altitude). Two miles." If surveillance bearing information is not available on the intruder, "Traffic, No Bearing" is spoken.

By vocalizing more specific traffic spotting information, the Garmin GTS 820 lets aircrafts know instantly where to look without going "eyes-down" to locate the intruder target. This can save vital moments in a fast-converging flight situation. Those extra split-seconds can mean a lot to both the pilot and aircraft.

There's More than One Way to Keep Your Distance

The Garmin GTS family of TAS and TCAS I systems offers a full range of traffic surveillance capabilities to fit your specific aircraft and operational criteria. Engineered for faster and higher-performance GA singles and twins, the Garmin GTS 820 offers a +/- 10,000-foot vertical separation maximum, 250 watts of nominal power output, and up to 40 nm of active interrogation range in the forward direction. All Garmin GTS units will operate to 55,000 feet. And a Garmin Mode-S transponder (sold separately) is required as part of the Garmin GTS 820 system installation.

Faster Detection Brings Better Protection

Using advanced "NextGen" system concepts, the Garmin GTS 820 offers built-in ADS-B receiver technology. This enables installation of a Garmin GTX 330 ES "extended squitter" Mode-S transponder (sold separately), or other complementary class of ADS-B "Out" equipment, such as Garmin's GDL 90 Universal Access Transceiver (or UAT).

The system can display traffic symbols and advisories on a variety of compatible display products in the cockpit. By synthesizing both active and passive traffic surveillance, the Garmin GTS 820 from Pacific Coast Avionics is able to automatically report and receive more stable, and more detailed, traffic data. This includes GPS-based positioning, relative direction and altitude, aircraft flight ID, plus vertical and course trend vectors (if available, on compatible displays). Instead of just seeing random targets, pilots of aircrafts can now easily identify and track specific aircraft flight trajectories with much, much greater precision. In busy airspace they are able to fly with a much clearer tactical picture.

Select from a Variety of Antenna Options

To optimize signal reception for all types of aircraft, Garmin offers a wide selection of antenna models and configurations. The typical GTS 820 installation includes both top-mount directional and optional bottom-mount antennas (directional or omni) to help maintain surveillance on aircraft directly below you – while minimizing target drop outs during turns and maneuvers. For high-speed aircraft, optional low-profile directional antennas are also available.

In addition, the GTS 820 package includes a 4-channel GPA 65 power amplifier/low noise amplifier (PA/LNA) to be remotely installed near the top directional antenna. Its purpose is to boost antenna performance while minimizing power consumption – thus enhancing system efficiency. See your Garmin dealer for full installation details.

Features of the Garmin GTS 820:

  • Displays up to 30 intruder threats
  • Selectable horizontal display ranges
  • ±10,000 ft. max. relative altitude reference
  • Uses TCAS-like symbology
  • Interfaces with a variety of compatible MFDs and cockpit displays (not included)
  • Selective/directional interrogation reduces frequency congestion
  • Choice of 12 nm or 40 nm forward-looking coverage
  • Generates both aural and visual traffic advisories
  • Expanded aural alerts can specify relative target bearing, relative altitude (above/below) and range
  • Active and passive (ADS-B) surveillance technologies
  • Tracks up to 60 traffic targets simultaneously
  • High-Speed Data Bus (HSDB) or ARINC 429 interface capabilities
  • Vertical or horizontal LRU rack mounting
  • 14/28 VDC power capability

The installed price includes two GA 58 Directional Antennas. This gives the best traffic coverage possible. Install pricing may be lower if the aircraft is a light single, fixed gear aircraft or can use one of the other antenna options available.


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